exam 2 - 1 A difference between vertically and horizontally...

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1. A difference between vertically and horizontally acquired mutations is that A. only vertically-acquired mutations are passed on to progeny cells B. chemical mutagens only induce vertically acquired mutations C. knockout phenotypes only result from vertically-acquired mutations D. horizontally-acquired mutations are more severe 2. Which of the following would generally be the MOST detrimental to a bacterium? 3. A base substitution that causes a silent mutation would most likely occur 4. Which of the following is NOT true of quorum sensing? 5. Alkylating agents do NOT
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A. promote base substitution mutations B. cause cancer C. modify the chemical structure of DNA bases D. promote indel mutations 6. DNA intercalating agents 7. Which of the following is a FALSE statement about DNA methylation? 8. Thymine dimers 9. Which of the following is a FALSE statement about endonucleases? A. they are required for light repair of thymine dimers B. they include restriction enzymes
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C. they are required for mismatch repair D. they cut in the middle of DNA strands
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